Home / 154,134.86-231,201.20-79,275.88

Finding the Fourth Proportional to 154,134.86, 231,201.20 and 79,275.88

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Solution

The fourth proportional to 154,134.86, 231,201.20 and 79,275.88 is: 118,913.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,134.86 : 231,201.20 = 79,275.88 : x
  2. Step 2: Convert to fraction form
    154,134.86/231,201.20 = 79,275.88/x
  3. Step 3: Cross multiply
    154,134.86x = 231,201.20 × 79,275.88
  4. Step 4: Simplify right side
    154,134.86x = 18,328,678,587.06
  5. Step 5: Solve for x
    x = 18,328,678,587.06/154,134.86
  6. Step 6: Final answer
    x = 118,913.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.